公开(公告)号：AU2021258141A1

公开(公告)日：2022-10-13

申请号：AU2021258141

申请日：2021-04-20

Applicant: BAE SYSTEMS INFORMATION AND ELECTRONIC SYSTEMS INTEGRATION INC

Inventor： TOWNLEY MARTIN M ,  BEAUDEAU JONATHAN P

IPC: H04J11/00 ,  H04B7/08 ,  H04L5/00 ,  H04L25/03

Abstract: A method of mitigating interference in a received wireless signal by adaptive digital filtering efficiently deploys computational resources by using at least one of a DDC, weight generator, and scrubber to perform calculations necessary to generate a plurality of output streams. Embodiments transition a weight generator and scrubber between receiver frequencies according to a known frequency hopping pattern of an FHSS transmission. Other embodiments dedicate scrubbers to receiver frequencies while transitioning a weigh generator between the frequencies to generate sets of weights that can be persistently used by the scrubbers. Embodiments generate sets of weights according to one received multipath signal copy, and then apply the generated weights to filter additional multipath copes received at the same frequency. Various embodiments dedicate a DDC to each receive frequency to form a bank of down-converted outputs, from among which each weigh generator can select primary and reference inputs.